I wouldn’t bother.
The T&Cs are pretty clear and someone in the MYP thread already tried and got a no.
Details from the email:
Tesla has decided to grant free Supercharger credits, equivalent to approximately 10,000 km of driving, if you take delivery of a Tesla vehicle between December 15 and December 31, 2022. The free Supercharger credits will be credited to your Tesla Account in the month of January 2023 and will remain valid for a period of two calendar years from the delivery date. The free Supercharger credits cannot be transferred to another vehicle or person and cease to be valid in case of an ownership transfer of your vehicle. Tesla shall not be liable in the event that delivery of your vehicle, for whatever reason, cannot happen before December 31, 2022, and you’re not able to benefit from this promotion. Used vehicles are excluded from this promotion.